1

Water Quality Control by Means of Measuring the Specific Electrolytic Conductivity

Year:
1985
Language:
english
File:
PDF, 409 KB
english, 1985
7

Contribution to the oxygen input in a treated sewage channel by falls

Year:
1989
Language:
english
File:
PDF, 1.33 MB
english, 1989
15

Erdwärme: eine Alternative zur Energieversorgung der Zukunft?

Year:
1993
Language:
german
File:
PDF, 3.49 MB
german, 1993